The Carbon Cycle

Front

What is the Carbon Cycle?

Back

The Carbon Cycle is the circulation of carbon among Earth's atmosphere, land, oceans, and organisms.

Front

How do living organisms return carbon to the atmosphere?

Back

Living organisms return carbon to the atmosphere through decomposition and respiration.

Front

What process do plants and algae use to make food?

Back

Photosynthesis.

Front

How does carbon from grass become part of a lion?

Back

The carbon ends up in the lion's food chain when the lion eats the grass.

Front

What happens when humans burn fossil fuels?

Back

Most of the carbon quickly enters the atmosphere as carbon dioxide.

Front

What is respiration in the context of the carbon cycle?

Back

Respiration is the process by which living organisms convert oxygen and glucose into energy, releasing carbon dioxide back into the atmosphere.

Front

What role do decomposers play in the carbon cycle?

Back

Decomposers break down dead organic matter, returning carbon to the soil and atmosphere.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which plants and algae convert carbon dioxide and sunlight into glucose and oxygen.

Front

Why is the carbon cycle important for life on Earth?

Back

The carbon cycle is essential for regulating Earth's climate and providing the carbon necessary for life.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, containing carbon.